CN105258318A - Noise reducing and abnormal-sound removing device, air conditioner and air conditioner refrigerant flowing method - Google Patents
Noise reducing and abnormal-sound removing device, air conditioner and air conditioner refrigerant flowing method Download PDFInfo
- Publication number
- CN105258318A CN105258318A CN201510631506.7A CN201510631506A CN105258318A CN 105258318 A CN105258318 A CN 105258318A CN 201510631506 A CN201510631506 A CN 201510631506A CN 105258318 A CN105258318 A CN 105258318A
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- China
- Prior art keywords
- reducer pipe
- pipe
- noise reduction
- capillary
- conditioner
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
Abstract
The embodiment of the invention discloses a noise reducing and abnormal-sound removing device. According to the technical scheme, the device comprises a first reducer pipe, a second reducer pipe and a capillary pipe; the capillary pipe is located between the first reducer pipe and the second reducer pipe; the first reducer pipe comprises four sections of copper pipes with the diameters being phi A, phi B, phi C and phi D respectively, and the four sections of copper pipes are sequentially connected end-to-end from left to right; the second reducer pipe comprises four sections of copper pipes with the diameters being phi D, phi C, phi B and phi A respectively, and the four sections of copper pipes are sequentially connected end to end from left to right; the outer end of the copper pipe, with the diameter being phi A, of the first reducer pipe is connected to a single connector; the outer end of the copper pipe, with the diameter being phi D, of the first reducer pipe is connected to the capillary pipe; the outer end of the copper pipe, with the diameter being phi D, of the second reducer pipe is connected to the capillary pipe; the outer end of the copper pipe, with the diameter being phi A, of the second reducer pipe is provided with a horn-shaped opening. The embodiment of the invention further provides an air conditioner comprising the noise reducing and abnormal-sound removing device and a noise reducing and abnormal-sound removing method.
Description
Technical field
The embodiment of the present invention relates to air-conditioning technical field, particularly relate to a kind of noise reduction except different sound device, comprise noise reduction except the air-conditioner of different mixer and the current method of this air conditioner refrigerant.
Background technology
Air-conditioner is requisite a kind of household electrical appliance in people's daily life, and air-conditioner is energy-efficient, low noise is the target that people pursue, and the size of air quantity determines the root that the airflow noise of air-conditioning produces, and airflow noise and fan, compressor are the main sources that air conditioner noises produces.
In prior art, in off-premises station and indoor set tube connector, refrigerant flowing sound is very large and have different sound.Because indoor set spaces compact cannot add muffler, usually the method by adding muffler at blast pipe place, outside solves, the method only has certain inhibitory action to the noise of indoor under heating mode, but when this device runs unit refrigeration mode in tube connector the different sound of refrigerant flowing generation cannot solve.
Summary of the invention
The embodiment of the present invention provides a kind of noise reduction except different mixer, for freezing, heating mode run time eliminate refrigerant and to flow different sound.
The technical scheme that a kind of noise reduction of the embodiment of the present invention removes different mixer comprises:
First reducer pipe, the second reducer pipe, capillary, described capillary is between described first reducer pipe and described second reducer pipe;
Along direction from left to right, described first reducer pipe comprises the four joint copper pipes that diameter end to end is successively respectively φ A, φ B, φ C, φ D, described second reducer pipe comprises the four joint copper pipes that diameter end to end is successively respectively φ D, φ C, φ B, φ A, and four joint copper pipes of described first reducer pipe and four joint copper pipes of described second reducer pipe are all structure as a whole;
The diameter of described first reducer pipe is that the outer end of the described copper pipe of φ A is connected on single joint, and the diameter of described first reducer pipe is that the outer end of the described copper pipe of φ D is connected on described capillary;
The diameter of described second reducer pipe is that the outer end of the described copper pipe of φ D is connected on described capillary, and the diameter of described second reducer pipe is that the outer end of the described copper pipe of φ A is provided with horn mouth.
Preferably,
The diameter of the described copper pipe of four joints are φ B > φ A > φ C > φ D, and wherein diameter is that the internal diameter of the described copper pipe of φ D is identical with the external diameter of described capillary.
Preferably,
Described first reducer pipe and described second reducer pipe are symmetrical set relative to the center line of described capillary.
Preferably,
Described bell-mouthed outer end jointing nut, the outer end of described collar nut is provided with plastic closure.
Preferably,
Described noise reduction is arranged with damping glue except different mixer.
Preferably,
Described first reducer pipe and the welding of described capillary.
Preferably,
Described second reducer pipe and the welding of described capillary.
The embodiment of the present invention also provides a kind of and comprises the air-conditioner of above-mentioned noise reduction except different mixer, and described air-conditioner also comprises off-premises station, indoor set, and described noise reduction removes different mixer and is arranged on described indoor pusher side.
Preferably,
The first reducer pipe that described noise reduction removes different mixer is connected with indoor and outdoor connecting pipe, and the second reducer pipe that described noise reduction removes different mixer is connected with high-voltage tube.
The embodiment of the present invention also provides a kind of and comprises the current method of above-mentioned noise reduction except the cold-producing medium of the air-conditioner of different mixer, when described air-conditioner is in refrigeration mode, the flow direction of described cold-producing medium is first after the heat exchanger of the off-premises station of described air-conditioner, enter the second reducer pipe, capillary, the first reducer pipe successively by high-voltage tube, through the heat exchanger of the cold-producing medium of the first reducer pipe and then the indoor set through described air-conditioner, then get back to outdoor pusher side by indoor and outdoor machine tube connector;
Or
When described air-conditioner is in heating mode, the flow direction of described cold-producing medium is first after the heat exchanger of the indoor set of described air-conditioner, enter the first reducer pipe, capillary, the second reducer pipe successively, and then after the heat exchanger of the off-premises station of described air-conditioner, get back to outdoor pusher side.
The beneficial effect of employing technique scheme is:
The device that this noise reduction removes different sound comprises capillary, is installed on the first reducer pipe and second reducer pipe at the two ends of capillary respectively; The outer end of the first reducer pipe is provided with single interface, and the outer end of the second reducer pipe is provided with horn mouth; First reducer pipe and described second reducer pipe is all each is processed into four kinds of different radiuses by a pipe by enlarging reducing, adopt technique scheme, when refrigeration mode runs, what off-premises station entered high-voltage tube is cryogenic high pressure gas-liquid two-phase refrigerant, through this noise reduction except after the device of different sound, cryogenic high pressure gas-liquid two-phase refrigerant can become Low temperature low pressure liquid ratio refrigerant on the high side, thus the different sound that minimizing gas-liquid two-phase body refrigerant collides before entering indoor set.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structure chart of a kind of noise reduction of the embodiment of the present invention except different mixer;
Fig. 2 is the scheme of installation that a kind of noise reduction of the embodiment of the present invention removes different mixer and damping glue.
Fig. 3 does not install the level of noise test schematic diagram of noise reduction except the device tune device generation of different sound;
Fig. 4 has installed the level of noise test schematic diagram of noise reduction except the device tune device generation of different sound.
Detailed description of the invention
The embodiment of the present invention provides a kind of noise reduction except the device of different sound, for freezing, heating mode run time eliminate refrigerant and to flow different sound.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 2, the technical scheme that a kind of noise reduction of the embodiment of the present invention removes different mixer comprises:
Capillary 3, be installed on first reducer pipe 2 and second reducer pipe 4 at the two ends of capillary 3 respectively, capillary 3 is between the first reducer pipe 2 and the second reducer pipe 4; Along direction from left to right, first reducer pipe 2 comprises the different copper pipe of four end to end successively joint radiuses, the diameter of four joint copper pipes is respectively φ A, φ B, φ C, φ D, and the φ A in the present embodiment, φ B, φ C, φ D, for representing the diameter of four joint copper pipes, do not have special implication.
Second reducer pipe 4 equally also comprises the copper pipe that end to end four joint radiuses are different successively, with the first reducer pipe 2 unlike, the diameters of four joint copper pipes of the second reducer pipe 4 are followed successively by φ D, φ C, φ B, φ A from left to right.
It should be noted that, this noise reduction removes different mixer and is generally arranged on air-conditioner, for the ease of this noise reduction except different mixer with the connection of the accessory of air-conditioner, the outer end that this noise reduction is the copper pipe of φ A except the diameter of the first reducer pipe 2 of different mixer is connected with single joint 1, then this single joint 1 is connected with the indoor and outdoor connecting pipe of air-conditioner, thus achieves noise reduction except the first reducer pipe 2 of different mixer and be connected with indoor and outdoor connecting pipe; The diameter of the second reducer pipe 4 is that the outer end of the copper pipe of φ A is provided with horn mouth, then collar nut 5 is connected with in bell-mouthed outer end, be connected on the high-voltage tube of air-conditioner by this collar nut 5, and then realize the connection of the second reducer pipe 4 and high-voltage tube, further, the outside of collar nut 5 can be provided with plastic closure 6, is used for preventing dust impurity etc. from entering indoor set by off-premises station by arranging this plastic closure 6.
According to above-mentioned explanation, be understandable that, the diameter of the first reducer pipe 2 and the second reducer pipe 4 is that the outer end of the copper pipe of φ D is all connected on capillary 3, wherein diameter is the external diameter that the internal diameter of the copper pipe of φ D equals capillary 3, and then capillary 3 just can insert in the first reducer pipe 2 and the second reducer pipe 4, is convenient to tight welding.
It should be noted that, four joint copper pipes of the first reducer pipe 2 and the second reducer pipe 4 are all structure as a whole, the size of concrete diameter can be φ B > φ A > φ C > φ D, the internal diameter >=φ A of φ B.In the present embodiment, the first reducer pipe 2 and the second reducer pipe 4 is all each is processed into four kinds of different radiuses by a pipe by enlarging reducing, the flaring of employing reduces principle, allows caliber gradual change, is conducive to the flow resistance reducing refrigerant.First reducer pipe and the second reducer pipe also can be have the different radii being greater than 4, such as the copper pipe of 5 different radiis, 6 different radiis, this will consider with process technology, concrete type economy.
It should be noted that, the internal diameter of the capillary 3 in the present embodiment is greater than the internal diameter of indoor capillary, avoid causing second throttle, if the internal diameter that the internal diameter of the capillary in the embodiment of the present invention is less than indoor capillary can cause second throttle, airflow noise can increase on the contrary.
Further, first reducer pipe 2 and the second reducer pipe 4 are symmetrical arranged, first reducer pipe 2 and the second reducer pipe 4 are symmetrical set along the center line of capillary, thus enter the first reducer pipe 2 by the second reducer pipe 4 when entering the second reducer pipe 4 and cooling condition by the first reducer pipe 2 when ensureing heating condition and all reach same effect.
In the present embodiment, the first reducer pipe 2 and capillary 3 are welded to connect, and the second reducer pipe 4 and capillary 3 are welded to connect, and it should be noted that, the first reducer pipe 2, second reducer pipe 4 also can adopt other modes with the connection of capillary 3, such as, be threaded.
Further, the periphery that this noise reduction removes the device of different sound is enclosed with damping glue 7, and this damping glue 7 plays shock-absorption sound-insulation effect.
The embodiment of the present invention also provides a kind of and comprises the air-conditioner of above-mentioned noise reduction except different mixer, this air-conditioner comprises indoor set, noise reduction except different mixer, off-premises station, noise reduction removes different mixer and is arranged on indoor pusher side, noise reduction removes different mixer and can pack together with indoor set, save packaging space, the first reducer pipe 2 that noise reduction removes different mixer is connected with indoor and outdoor connecting pipe, and the second reducer pipe 4 that noise reduction removes different mixer is connected with indoor set high-voltage tube.
Below respectively to do not install noise reduction except different sound device and installed noise reduction except different sound device air-conditioner generation level of noise carry out comparative illustration, wherein table 1 is do not install the level of noise of noise reduction except the air-conditioner of the device of different sound, obvious different sound is had by the indoor set when indoor set directly connects high and low pressure tube connector, and refrigerant flow noise is bigger than normal, as shown in Figure 3, level of noise is 56.0dB (A); Table 2 for installing noise reduction except the level of noise of air-conditioner after the device of different sound, indoor set there is no obvious noise, and refrigerant flow noise improves, and as shown in Figure 4, level of noise is 51.1dB (A).
The embodiment of the present invention also provides a kind of and comprises the method for above-mentioned noise reduction except the flowing of the cold-producing medium of the air-conditioner of different mixer, and concrete technical scheme is:
When air-conditioner is in refrigeration mode, cold-producing medium heat release cooling in the heat exchanger of off-premises station through the HTHP of compressor compression becomes the gas-liquid two-phase refrigerant of cryogenic high pressure, gas-liquid two-phase refrigerant enters second reducer pipe 4 of noise reduction except different mixer successively by high-voltage tube, capillary 3 and the first reducer pipe 2, because capillary 3 plays the effect of reducing pressure by regulating flow, after the gas-liquid two-phase refrigerant heat radiation step-down of cryogenic high pressure, major part becomes Low temperature low pressure liquid refrigerant, thus decrease the different sound that gas-liquid two-phase refrigerant collides before entering indoor set, refrigerant after the first reducer pipe gets back to outdoor pusher side by indoor and outdoor connecting pipe again,
Or when air-conditioner is in heating mode, cold-producing medium heat release cooling in the heat exchanger of indoor through the HTHP of compressor compression becomes the gas-liquid two-phase refrigerant of cryogenic high pressure, then gas-liquid two-phase refrigerant is successively by the first reducer pipe 2, capillary 3, second reducer pipe 4, reducing pressure by regulating flow effect through capillary becomes Low temperature low pressure liquid refrigerant, then gets back to outdoor pusher side.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. noise reduction is except a different mixer, and it is characterized in that, comprising: the first reducer pipe, the second reducer pipe, capillary, described capillary is between described first reducer pipe and described second reducer pipe;
Along direction from left to right, described first reducer pipe comprises the four joint copper pipes that diameter end to end is successively respectively φ A, φ B, φ C, φ D, described second reducer pipe comprises the four joint copper pipes that diameter end to end is successively respectively φ D, φ C, φ B, φ A, and four joint copper pipes of described first reducer pipe and four joint copper pipes of described second reducer pipe are all structure as a whole;
The diameter of described first reducer pipe is that the outer end of the described copper pipe of φ A is connected on single joint, and the diameter of described first reducer pipe is that the outer end of the described copper pipe of φ D is connected on described capillary;
The diameter of described second reducer pipe is that the outer end of the described copper pipe of φ D is connected on described capillary, and the diameter of described second reducer pipe is that the outer end of the described copper pipe of φ A is provided with horn mouth.
2. noise reduction according to claim 1 is except different mixer, it is characterized in that, the diameter of the described copper pipe of four joints are φ B > φ A > φ C > φ D, and wherein diameter is that the internal diameter of the described copper pipe of φ D is identical with the external diameter of described capillary.
3. noise reduction according to claim 1 and 2 is except different mixer, and it is characterized in that, described first reducer pipe and described second reducer pipe are symmetrical set relative to the center line of described capillary.
4. noise reduction according to claim 1 is except different mixer, and it is characterized in that, described bell-mouthed outer end jointing nut, the outer end of described collar nut is provided with plastic closure.
5. noise reduction according to claim 1 is except different mixer, and it is characterized in that, described noise reduction is arranged with damping glue except different mixer.
6. noise reduction according to claim 1 is except different mixer, it is characterized in that, described first reducer pipe and the welding of described capillary.
7. noise reduction according to claim 1 is except different mixer, it is characterized in that, described second reducer pipe and the welding of described capillary.
8. comprise the air-conditioner of the noise reduction according to any one of claim 1 to 7 except different mixer, it is characterized in that, described air-conditioner also comprises off-premises station, indoor set, and described noise reduction removes different mixer and is arranged on described indoor pusher side.
9. air-conditioner according to claim 8, is characterized in that, the first reducer pipe that described noise reduction removes different mixer is connected with indoor and outdoor connecting pipe, and the second reducer pipe that described noise reduction removes different mixer is connected with high-voltage tube.
10. a current method for air conditioner refrigerant, is realized by air-conditioner as claimed in claim 8 or 9, it is characterized in that, comprising:
When described air-conditioner is in refrigeration mode, the flow direction of described cold-producing medium is first after the heat exchanger of the off-premises station of described air-conditioner, enter the second reducer pipe, capillary, the first reducer pipe successively by high-voltage tube, through the heat exchanger of the cold-producing medium of the first reducer pipe and then the indoor set through described air-conditioner, then get back to outdoor pusher side by indoor and outdoor machine tube connector;
Or
When described air-conditioner is in heating mode, the flow direction of described cold-producing medium is first after the heat exchanger of the indoor set of described air-conditioner, enter the first reducer pipe, capillary, the second reducer pipe successively, and then after the heat exchanger of the off-premises station of described air-conditioner, get back to outdoor pusher side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631506.7A CN105258318A (en) | 2015-09-28 | 2015-09-28 | Noise reducing and abnormal-sound removing device, air conditioner and air conditioner refrigerant flowing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631506.7A CN105258318A (en) | 2015-09-28 | 2015-09-28 | Noise reducing and abnormal-sound removing device, air conditioner and air conditioner refrigerant flowing method |
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| Publication Number | Publication Date |
|---|---|
| CN105258318A true CN105258318A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510631506.7A Pending CN105258318A (en) | 2015-09-28 | 2015-09-28 | Noise reducing and abnormal-sound removing device, air conditioner and air conditioner refrigerant flowing method |
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| CN (1) | CN105258318A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783234A (en) * | 2016-03-07 | 2016-07-20 | 芜湖美智空调设备有限公司 | Connector and air-conditioner provided with same |
| CN107917557A (en) * | 2017-10-26 | 2018-04-17 | 海信科龙电器股份有限公司 | A kind of restriction sleeve and air conditioner |
| CN110848925A (en) * | 2019-11-18 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
| CN112747501A (en) * | 2019-10-31 | 2021-05-04 | 广东美的白色家电技术创新中心有限公司 | Compressor assembly, heat exchange system and electrical equipment |
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| CN202066258U (en) * | 2010-12-20 | 2011-12-07 | 美的集团武汉制冷设备有限公司 | Throttling installation structure for refrigeration cycle |
| CN202338987U (en) * | 2011-08-11 | 2012-07-18 | 大连三洋空调机有限公司 | Air conditioner with external electronic expansion valve |
| CN203163370U (en) * | 2013-03-13 | 2013-08-28 | 美的集团武汉制冷设备有限公司 | Refrigerant noise eliminator and air conditioner |
| CN103471294A (en) * | 2013-09-06 | 2013-12-25 | 青岛海信日立空调系统有限公司 | Noise reduction flow dividing device based on multi-connection air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202066258U (en) * | 2010-12-20 | 2011-12-07 | 美的集团武汉制冷设备有限公司 | Throttling installation structure for refrigeration cycle |
| CN202338987U (en) * | 2011-08-11 | 2012-07-18 | 大连三洋空调机有限公司 | Air conditioner with external electronic expansion valve |
| CN203163370U (en) * | 2013-03-13 | 2013-08-28 | 美的集团武汉制冷设备有限公司 | Refrigerant noise eliminator and air conditioner |
| CN103471294A (en) * | 2013-09-06 | 2013-12-25 | 青岛海信日立空调系统有限公司 | Noise reduction flow dividing device based on multi-connection air conditioning system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105783234A (en) * | 2016-03-07 | 2016-07-20 | 芜湖美智空调设备有限公司 | Connector and air-conditioner provided with same |
| CN107917557A (en) * | 2017-10-26 | 2018-04-17 | 海信科龙电器股份有限公司 | A kind of restriction sleeve and air conditioner |
| CN112747501A (en) * | 2019-10-31 | 2021-05-04 | 广东美的白色家电技术创新中心有限公司 | Compressor assembly, heat exchange system and electrical equipment |
| CN110848925A (en) * | 2019-11-18 | 2020-02-28 | 广东美的制冷设备有限公司 | Air conditioner and control method and device thereof |
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Application publication date: 20160120 |